TY  - BOOK
AU  - Piaggio, H.T.H.
TI  - An elementary treatise on Differential equations and their applications
U1  - S/C-S/T B33 J2P;1 
PY  - 1985///
CY  - Delhi
PB  - CBS Publishers
KW  -  Differential Equations
N1  - Includes Appendix and index
ER  -